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Yingpeng Sun
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Shanghai, CN
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Patents Grants
last 30 patents
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Patent Grant
Safety shredder with bin-full device and time delay
Patent number
9,643,190
Issue date
May 9, 2017
Aurora Office Equipment Co., Ltd. Shanghai
Wei Liu
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Patents Applications
last 30 patents
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Patent Application
SAFETY SHREDDER WITH BIN-FULL DEVICE AND TIME DELAY
Publication number
20140197258
Publication date
Jul 17, 2014
Wei Liu
B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...